I'll first mention all the things below I'm going to say are pretty much going to require Mac OS X 10.5 or later.

Well, if you know me, I enjoy memory modding/hacking/ halo. I looked into modding halo through memory, and I created my own tool that allows me to write memory mods pretty easily. I decided to distribute the tool and document all the information here so that anyone else can do the same if they want to: